# CVE-2026-86670: aircheng-org iWebShop-5 weak password hashing

Source: https://junglewise.ai/threats/cve-2026-86670-aircheng-org-iwebshop-5-weak-password-hashing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-08. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-86670 · Severity: low · CVSS 3.7 · Published 2026-09-08

iWebShop-5 is an open-source e-commerce platform that stores user, admin, and seller passwords using unsalted MD5 hashing instead of modern algorithms. If a database is compromised through backup exposure, SQL injection, or misconfigured access, attackers can rapidly crack password hashes using online rainbow tables or GPU-accelerated tools, gaining immediate access to administrative and customer accounts. This substantially increases the damage from any data breach.

Technologies: [Aircheng-Org iWebShop-5](https://junglewise.ai/threats/technologies/iwebshop-5). Vendors: [Aircheng-Org](https://junglewise.ai/threats/vendors/aircheng-org).

## Quick answers

**Is CVE-2026-86670 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-86670 being exploited in the wild.

**How severe is CVE-2026-86670?** Low severity, with a CVSS score of 3.7, published 8 September 2026.

**Which products and versions are affected?** Aircheng-Org iWebShop-5 up to 5.15.

**Is there a fix for CVE-2026-86670?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-86670 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-86670?** Check whether you run Aircheng-Org iWebShop-5 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a weak cryptographic algorithm (CWE-327) in password storage across multiple components: admin login (controllers/admin.php), system password creation (controllers/system.php), seller login (controllers/systemseller.php), user registration and password reset (controllers/simple.php and plugins/_userInfo/_userInfo.php). All password hashes use unsalted MD5 with direct digest comparison during authentication, making them trivially reversible once database access is obtained. Attack requires network access to the database or a secondary vulnerability exposing stored credentials; no authentication is needed if database backup is accessed separately. Exploitation is straightforward using freely available MD5 rainbow tables. The project was informed via GitHub issue on 2026-07-29 but has not patched as of the advisory publication date.

## Affected products

- aircheng-org iWebShop-5 up to 5.15

## Timeline

- 2026-07-29: disclosed: Issue reported on GitHub
- 2026-09-08: advisory: Vulnerability advisory published

## References

- [https://github.com/aircheng-org/iWebShop-5/](https://github.com/aircheng-org/iWebShop-5/)
- [https://github.com/aircheng-org/iWebShop-5/issues/7](https://github.com/aircheng-org/iWebShop-5/issues/7)

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